|Birthday Date||December 31st SC0110|
|Favourite song||Yume wa nandomo umarekawaru|
|Oshimen||Maeda Atsuko the 18th|
|Desired Name||Unknown at the moment|
Yumeko has black shoulder length hair and green eyes. Since there is always winter on her home planet Koristar, she mostly only has warm winter clothes. She is a bit short for her age. She has very pale skin. Like all members of AKB0048 she has heart shaped shine in her eyes and hair.
Yumeko is a shy person who isn't very comfortable in her abilities however she became much more confident after joining AKB0048 and because of her friendship with Hotaru and other members. Yumeko is more of a quiet observer and doesn't talk much but enjoys listening to conversation of other members. She is kind and cares a lot for her fellow members. She is polite to others and doesn't get angry often. She is very organized and hardworking and always does her work on time. She wants to give strong and calm image and hates it if she shows her weakness to others - she usually tries to pretend she is fine when she doesn't feel well.
Yumeko comes from a planet called Koristar, a planet that has winter for a whole year. She was usually alone and her only friend was Ito Hotaru, who was the reason Yumeko decided to join AKB0048.
Koristar is under entertainment ban so Yumeko never heard music until she was 6. She was playing alone in the forest when she suddenly heard it and went to check what is happening. She met a girl her age who was hiding and listening to AKB songs. When girl noticed her she invited her to join her. It was Ito Hotaru and because of her Yumeko learned about 00. After that she became big fan of AKB, but she never imagined that she could become part of it too, she was satisfied with just being a fan. She spent time with Hotaru every day, but when she was 9, Hotaru told her that her family got chance to move to Atamistar so they are going there. Before they left they promised to each other that they'll meet again one day, when they'll become part of AKB0048 together. Yumeko decided that she'll definitely keep that promise.
Yumeko passed auditions and joined AKB0048 as part of 150th generation. There she was reunited with Hotaru and it was like they never spent time apart. Two of them also became very close with Rei and Tomorin.
Auditions for 152nd generation Edit
Yumeko along with Hotaru, Rei and Tomorin met some auditioneers and they ate lunch together.
- Joined the 150th Generation of Trainees (SC0122.11.18)
- Promoted to Team 00 (SC0123.06.17)
- Transferred to Team A (SC0123.10.31)
Inoue Megumi - Fellow Kenkyuusei.
Takanashi Yukari - Fellow Kenkyuusei.
Hoshimiya Aoi - Fellow Kenkyuusei.
Hoshikawa Rei - Fellow Kenkyuusei and one of her roommates. Two of them get along very well and Yumeko considers her one of her closest friends.
Ito Hotaru - Her fellow Kenkyuusei, best friend and one of her roommates. Before she moved to Atamistar they promised each other that they'll meet at AKB0048 auditions one day (See YumeTaru for more details).
Itano Tomorin - Fellow Kenkyuusei and former roommate.
Samuikaze Ran - Fellow Kenkyuusei.
Harune Diamond - Fellow Kenkyuusei.
Taiyamoto Akano - Fellow Kenkyuusei.
Asahina Miru - Kouhai.
Itano Tomoko - Kouhai.
Aozora Kokone - Kouhai.
Honda Hibiki - Kouhai.
Tsubasa Diana - Kouhai.
Makori Ririka - Kouhai.
Mion Espoir - Kouhai.
Emily Silver - Kouhai.
Ryuuzaki Miyoko - Kouhai.
Nakahara Monica - Kouhai.
Masaki Amarie - Kouhai.
Amaya Jia - Kouhai.
Kasumi Yuuna - Kouhai.
Ayana Elise - Kouhai.
Kobayashi Griselda - Kouhai.
MoYoung Marian - Kouhai.
Itou Haruki - Kouhai.
Tomone Kaoru - Kouhai.
Nishimura Karin - Kouhai.
Murasaki Aoi - Kouhai.
Nagase Yuuri - Kouhai.
Koizumi Ayaka - Kouhai.
Shiratama Mayu - Kouhai.
Natsuki Hotaru - Kouhai.
LaLa Rue - Kouhai.
Tobina Riko - Kouhai.
Kumotani Julie - Kouhai.
Chiba Miku - Kouhai.
Mizu Kaguya - Kouhai.
Lee Hana - Kouhai.
Chizu Snow - Kouhai.
Yokoyama Asuna - Kouhai.
Ogawa Norah - Kouhai.
Kamiyama Mako - Kouhai.
Sengawa Kagome - Kouhai.
Kaname Reina - Kouhai.
Kawano Namia - Kouhai.
Tachibana Elisabeth - Kouhai.
Yozora Yoko - Kouhai.
Arisugawa Mikoto - Kouhai.
Amuro Yuhane - Kouhai.
Angelica Bianchi - Kouhai.
Akimoto Sayaka the 15th - Kouhai
Yokoyama Yui the 13.5th - Kouhai.
Takahashi Minami the 7th - One of her fellow understudies before she became a successor.
Kuramochi Asuka the 13th - Kouhai.
Sashihara Rino the 11th - Kouhai.
Shimazaki Haruka the 11th - Kouhai.
Kodama Haruka the 8th - Kouhai.
Ikuta Erika the 11th - Kouhai.
Eguchi Aimi the 4th - Kouhai.
Hirate Yurina the 7th - Kouhai.
Nakai Rika the 15th - Kouhai.
Minegishi Minami the 7th - Kouhai.
Matsui Jurina the 8th - Kouhai.
Watanabe Mayu Type 5 - Kouhai.
Yomohiro Haruko - Fellow Kenkyuusei until she graduated.
Yomohiro Kirara - Fellow Kenkyuusei until she graduated.
Kagawa Sayuri - She was one of her fellow kenkyuusei before she became a successor.
Shibuya Komari - She was one of her fellow kenkyuusei before she became a successor.
Shino Hoshina - Kouhai.
Ashley Snow - Kouhai.
Suzuno Natsuki - Fellow Kenkyuusei until she graduated.
Suzuno Sakura - Fellow Kenkyuusei until she graduated.
Motomiya Hikari - AKB0048 manager and producer.
Kuroki Erika - AKB0048 presenter.
Hashimoto Ayumi - AKB0048 dance teacher.
Akiyama Tamotsu - AKB0048 dorms' janitor.
Akamine Kazuto - AKB0048's vocal instructor.
Shirokami Yuki - AKB00480's designer.
- SC0125 - #20
Yumeko hasn't participled in any A-Sides yet